Finding the Fourth Proportional to 30,940.26, 42,697.61 and 16,793.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,940.26 : 42,697.61 = 16,793.10 : x
2. Step 2: Convert to fraction form
   30,940.26/42,697.61 = 16,793.10/x
3. Step 3: Cross multiply
   30,940.26x = 42,697.61 × 16,793.10
4. Step 4: Simplify right side
   30,940.26x = 717,025,150.53
5. Step 5: Solve for x
   x = 717,025,150.53/30,940.26
6. Step 6: Final answer
   x = 23,174.50